The answer is C- 20
a^2 + b^2=c^2
David spent $172.
The first concert he went with 1 friend including himself so
32+32=64
The second concert he went with 2 friends including himself so
64+18+18+18=118
The third concert he went by himself so
118+54=172
David spent $172 dollars with him and his friends on tickets.
The answer is a 8*3 =24 and 8*8=64x
You add up all of the Frequencies together (to get 50)
The number 6 was rolled 9 times. So that makes it 9/50.
9/50 -> .18 or 18%
Does that help?
